New City Higashi-Totsuka: Urban Development of 60 Hectares
New City Higashi-Totsuka was the largest urban development project in Japan's private sector. In 1971, the City of Yokohama released its Higashi-Totsuka New City Plan. Seeing it as socially significant, Kumagai Gumi decided to participate. Higashi-Totsuka Station, built by Kumagai Gumi, was opened, then from the following year until the end of the project in 2005, Kumagai Gumi worked on about 4,500 residences in the surrounding area, including four super high-rise residential buildings, and about 100 commercial facilities aimed at coexistence with the environment.